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DE3376857D1 - Sorting screen for fibrous suspensions - Google Patents

Sorting screen for fibrous suspensions

Info

Publication number
DE3376857D1
DE3376857D1 DE8383110739T DE3376857T DE3376857D1 DE 3376857 D1 DE3376857 D1 DE 3376857D1 DE 8383110739 T DE8383110739 T DE 8383110739T DE 3376857 T DE3376857 T DE 3376857T DE 3376857 D1 DE3376857 D1 DE 3376857D1
Authority
DE
Germany
Prior art keywords
sorting
apertures
recesses
screen
sorting screen
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
DE8383110739T
Other languages
German (de)
Inventor
Emil Holz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Voith Finckh Fiber Systems GmbH and Co KG
Original Assignee
Hermann Finckh Maschinenfabrik GmbH and Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hermann Finckh Maschinenfabrik GmbH and Co filed Critical Hermann Finckh Maschinenfabrik GmbH and Co
Priority to DE8383110739T priority Critical patent/DE3376857D1/en
Application granted granted Critical
Publication of DE3376857D1 publication Critical patent/DE3376857D1/en
Expired legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
    • D21D5/00—Purification of the pulp suspension by mechanical means; Apparatus therefor
    • D21D5/02—Straining or screening the pulp
    • D21D5/16—Cylinders and plates for screens
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
    • B01D29/114—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements arranged for inward flow filtration
    • B01D29/115—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements arranged for inward flow filtration open-ended, the arrival of the mixture to be filtered and the discharge of the concentrated mixture are situated on both opposite sides of the filtering element
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/62—Regenerating the filter material in the filter
    • B01D29/66—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps
    • B01D29/666—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps by a stirrer placed on the filtrate side of the filtering element
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/88—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices
    • B01D29/90—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices for feeding
    • B01D29/902—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices for feeding containing fixed liquid displacement elements or cores
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
    • D21D5/00—Purification of the pulp suspension by mechanical means; Apparatus therefor
    • D21D5/02—Straining or screening the pulp
    • D21D5/023—Stationary screen-drums
    • D21D5/026—Stationary screen-drums with rotating cleaning foils
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12361—All metal or with adjacent metals having aperture or cut
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24273—Structurally defined web or sheet [e.g., overall dimension, etc.] including aperture

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Paper (AREA)
  • Combined Means For Separation Of Solids (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Plural Heterocyclic Compounds (AREA)
  • Inorganic Fibers (AREA)

Abstract

Sorting screen for fibre suspensions comprising a screen wall having recesses on a first side and narrower sorting apertures on the other, second side, these apertures opening into the recesses and the recesses each extending over a plurality of sorting apertures and being spaced in all directions from one another such that the screen wall has a net structure on its first side between the apertures. In order to achieve the utmost fineness when sorting with such a screen the recesses are arranged on the inflow side of the screen wall and the sorting apertures are designed as bores.
DE8383110739T 1983-10-11 1983-10-27 Sorting screen for fibrous suspensions Expired DE3376857D1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE8383110739T DE3376857D1 (en) 1983-10-11 1983-10-27 Sorting screen for fibrous suspensions

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19833336874 DE3336874A1 (en) 1983-10-11 1983-10-11 SORTING SCREEN
DE8383110739T DE3376857D1 (en) 1983-10-11 1983-10-27 Sorting screen for fibrous suspensions

Publications (1)

Publication Number Publication Date
DE3376857D1 true DE3376857D1 (en) 1988-07-07

Family

ID=6211494

Family Applications (2)

Application Number Title Priority Date Filing Date
DE19833336874 Withdrawn DE3336874A1 (en) 1983-10-11 1983-10-11 SORTING SCREEN
DE8383110739T Expired DE3376857D1 (en) 1983-10-11 1983-10-27 Sorting screen for fibrous suspensions

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE19833336874 Withdrawn DE3336874A1 (en) 1983-10-11 1983-10-11 SORTING SCREEN

Country Status (5)

Country Link
US (1) US4571298A (en)
EP (1) EP0146641B1 (en)
AT (1) ATE34791T1 (en)
CA (1) CA1236051A (en)
DE (2) DE3336874A1 (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI73759B (en) * 1986-01-22 1987-07-31 Ahlstroem Oy SILPLAOT.
DE3607457A1 (en) * 1986-03-07 1987-09-10 Voith Gmbh J M SORTING SCREEN
GB2195911A (en) * 1986-10-08 1988-04-20 Ingersoll Rand Co Screening apparatus for pulp
US4918807A (en) * 1988-10-19 1990-04-24 A. Ahlstrom Corporation Screen and method of manufacture
JP2515808Y2 (en) * 1990-10-01 1996-10-30 相川鉄工株式会社 Paper strainer
DE4121896A1 (en) * 1991-07-02 1993-01-07 Fiedler Heinrich Gmbh SCREEN ELEMENT
FI88732C (en) * 1991-12-16 1993-06-28 Ahlstroem Oy Procedure and apparatus for treating backwater
AU2003221774A1 (en) * 2002-04-24 2003-11-10 Frey A. Frejborg A screen section, screen cylinder, screening device, and method of screening fibrous material
DE10333884B4 (en) * 2003-07-22 2008-01-10 Dentale Abfall-Entsorgungs-Gesellschaft Mbh Apparatus for amalgam separation
WO2006135724A1 (en) * 2005-06-09 2006-12-21 Rosemount Analytical, Inc. Electrochemical cell and reference cell with flowing liquid junction
US7837847B2 (en) * 2006-10-02 2010-11-23 Rosenmount Analytical Inc. High purity water pH sensor with shielded flowing liquid junction
EP2516733A1 (en) * 2009-12-25 2012-10-31 Voith Patent GmbH Method and screening device for screening a fiber suspension
DE202010016701U1 (en) * 2010-12-16 2011-04-14 Voith Patent Gmbh scree

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US206632A (en) * 1878-07-30 Improvement in perforated tiles for draining paper-stock and for other purposes
US298172A (en) * 1884-05-06 False bottom foe mash tubs
FR443247A (en) * 1912-02-27 1912-09-19 Alphons Lottes Jeune Filter stone for filter tanks used in laundries and their equivalent
US1780882A (en) * 1929-07-18 1930-11-04 Martin F Kettler Well screen
US2419155A (en) * 1944-02-19 1947-04-15 Union Screen Plate Company Wood pulp screen plate
DE1905832U (en) * 1964-09-16 1964-12-03 Hermann Finckh G M B H SECURE FOR PAPER FABRIC SUSPENSIONS.
DE1611145A1 (en) * 1967-12-11 1970-09-03 Roland Soelch Process for the production of gap filter bodies for ultrafine filtration
JPS5637393A (en) * 1979-08-30 1981-04-11 Mitsubishi Heavy Ind Ltd Screen apparatus for paper stock
DE3113734A1 (en) * 1980-04-22 1982-02-04 British Sidac Ltd., Watford, Hertfordshire "RINSABLE FILTERING DEVICE"
US4276159A (en) * 1980-06-19 1981-06-30 The Black Clawson Company Apparatus for screening paper fiber stock
US4415613A (en) * 1981-08-24 1983-11-15 Jonas Medney Method for making strengthened porous pipe and resulting product
FR2516563A1 (en) * 1981-11-18 1983-05-20 Lamort E & M IMPROVEMENTS ON PAPER PULP CLEANERS AND THEIR SCREWS

Also Published As

Publication number Publication date
EP0146641B1 (en) 1988-06-01
ATE34791T1 (en) 1988-06-15
DE3336874A1 (en) 1985-04-25
CA1236051A (en) 1988-05-03
EP0146641A1 (en) 1985-07-03
US4571298A (en) 1986-02-18

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee